Texture isn't showing up
If you did not save the image texture externally first, you will not have access to the image when you reload the file. I only know this because I have done this many times myself!
In order to maintain the file, save it from the image editor:Image &gt; Save As.
Then choose a location on your drive to save the image.
When you paint on it again, you will be able to see it when you reload the file, and remember to go to Image &gt; Save every so often so you don't lose any work!